AI Article Synopsis
- The study aimed to identify sources of Listeria monocytogenes contamination in cattle at a slaughterhouse by collecting skin, intestinal contents, and carcass samples.
- Out of 60 skin samples, 30 tested positive for Listeria, with 3 specifically identified as L. monocytogenes, while no contamination was found in intestinal contents or carcasses.
- Genetic analysis indicated a persistent presence of Listeria in the studied area, with two prevalent serotypes identified among the isolates.
Article Abstract
We attempted to isolate Listeria monocytogenes from skin, contents of large intestines and carcasses of cattle introduced to a slaughterhouse in order to identify source of contamination for this pathogen. Sixty skin samples, 60 samples of the contents of large intestines and 30 carcass samples were colleted in June, August and November 2003 for use in this study. Listeria spp. and L. monocytogenes were isolated from 30 (50%) and 3 (5%) of the cattle skin samples, respectively. However, no Listeria spp., including L. monocytogenes, were isolated from intestinal contents or carcasses. Seven isolates were obtained, of which five and two strains were serotypes 1/2a and 1/2b, respectively. Genetic analysis suggested that there was persistent inhabitation of the pathogen around the area investigated in this study.
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| http://dx.doi.org/10.1292/jvms.69.1077 | DOI Listing |
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